Patents by Inventor Kazune MATSUMURA
Kazune MATSUMURA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10656479Abstract: In an IPS-mode liquid crystal display device, the area of a terminal portion is decreased. A liquid crystal display device includes a TFT substrate and a counter substrate attached to the TFT substrate with a sealing material, and includes a display region and a terminal portion formed on the TFT substrate. A shielding transparent conductive film is formed on the outer side of the counter substrate. On the terminal portion, an earth pad formed with a transparent conductive film is formed on an organic passivation film. The shielding transparent conductive film is connected to the earth pad through a conductor. Below organic passivation film of the terminal portion, a wire is formed.Type: GrantFiled: September 13, 2018Date of Patent: May 19, 2020Assignee: Japan Display Inc.Inventors: Hiroyuki Abe, Kentaro Agata, Masaki Murase, Kazune Matsumura
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Patent number: 10545597Abstract: A display device having a Near Field Communication (NFC) function and a display panel installed with the touch panel function comprising: the common voltage is applied to all the display electrodes (Tx1 through Txn) during a display operation; the voltage for the touch panel is successively applied to the display electrodes during the touch panel operation; a first circuit, which changes between the display operation and the touch panel operation, is formed at a first side of the display area, a second circuit, which changes between the image display operation and the touch panel operation, is formed at a second side of the display area; the first circuit supplies the voltage for the touch panel to a selected display electrode and supplies the common electrode to other electrodes; the second switch circuit does not supply voltage to the selected display electrode and supplies the common voltage to other electrodes.Type: GrantFiled: September 28, 2018Date of Patent: January 28, 2020Assignee: Japan Display Inc.Inventors: Hiroyuki Abe, Kazune Matsumura, Naoki Miyanaga
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Publication number: 20200019031Abstract: According to an aspect, a display device includes: a first substrate having a first side and a second side opposed to the first side; a display region provided with pixels; a first partial peripheral region between the first side and the display region; a second partial peripheral region between the second side and the display region; a plurality of signal lines configured to supply signals to switching elements in the pixels; a plurality of first terminals provided in the first partial peripheral region and configured to be electrically coupled to a driver integrated circuit; a plurality of second terminals provided in the second partial peripheral region and configured to be supplied with signals for inspection; and a first coupling circuit provided between the first terminals and the display region in the first partial peripheral region and configured to switch between coupling and decoupling the signal lines and the second terminals.Type: ApplicationFiled: July 11, 2019Publication date: January 16, 2020Applicant: Japan Display Inc.Inventors: Gen KOIDE, Hiroyuki ABE, Kazune MATSUMURA
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Publication number: 20190391454Abstract: According to an aspect, a display device includes: a substrate; a display region; a peripheral region; signal lines; terminals; wires coupling the terminals and the signal lines in the peripheral region; and first and second metal layers in different layers perpendicularly to the substrate and an insulating film in the peripheral region. The peripheral region includes: a first wiring region, in which the wires are electrically coupled to the signal lines; a second wiring region between the first wiring region and the terminals, and in which at least one or more wires pass through the first and second metal layers; and a third wiring region between the first and second wiring regions, and in which the wires extend in a second direction intersecting the first direction. The third wiring region includes contacts coupling the first and second metal layers, and a virtual line connecting the contacts has a curved shape.Type: ApplicationFiled: June 17, 2019Publication date: December 26, 2019Applicant: Japan Display Inc.Inventors: Gen KOIDE, Hiroyuki Abe, Kazune Matsumura
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Publication number: 20190265824Abstract: According to an aspect, a display device with a sensor includes: a substrate including a display region and a peripheral region on a periphery of the display region; detection electrodes arranged in a row-column configuration in the display region; and detection lines coupled to the respective detection electrodes. A shape of the substrate in a plan view includes a curve of a curved portion. The detection electrodes include a first electrode and a second electrode having a shape different from that of the first electrode in a plan view. The second electrode is juxtaposed with the curved portion. The detection lines each include a first line coupled to the first electrode and a second line coupled to the second electrode. The second line passes from the display region across the peripheral region and extends to a position overlapping with the second electrode in a plan view.Type: ApplicationFiled: February 21, 2019Publication date: August 29, 2019Applicant: Japan Display Inc.Inventors: Hiroyuki ABE, Yoshinori AOKI, Kazune MATSUMURA, Masateru MORIMOTO
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Publication number: 20190250444Abstract: A second substrate has detection electrodes of a touch panel, each of pixels has a pixel electrode and a counter electrode, the counter electrode is divided into a plurality of blocks, the counter electrodes of the respective divided blocks are commonly provided for the respective pixels of the plurality of display lines in series, and the counter electrodes also serve as scanning electrodes of the touch panel, and a counter electrode selector circuit that selects the counter electrodes. The counter electrode selector circuit includes an address decoder circuit that selects the counter electrodes of the respective blocks for a given period, and a selector circuit that applies a touch panel scanning voltage to the counter electrode of the block selected by the address decoder circuit, and applies a counter voltage to the counter electrodes of the blocks not selected by the address decoder circuit.Type: ApplicationFiled: April 18, 2019Publication date: August 15, 2019Inventors: Yoshinori AOKI, Keita SASANUMA, Kazune MATSUMURA
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Patent number: 10302984Abstract: A second substrate has detection electrodes of a touch panel, each of pixels has a pixel electrode and a counter electrode, the counter electrode is divided into a plurality of blocks, the counter electrodes of the respective divided blocks are commonly provided for the respective pixels of the plurality of display liner in series, and the counter electrodes also serve as scanning electrodes of the touch panel, and a counter electrode selector circuit that selects the counter electrodes. The counter electrode selector circuit includes an address decoder circuit that selects the counter electrodes of the respective blocks for a given period, and a selector circuit that applies a touch panel scanning voltage to the counter electrode of the block selected by the address decoder circuit, and applies a counter voltage to the counter electrodes of the blocks not selected by the address decoder circuit.Type: GrantFiled: August 31, 2017Date of Patent: May 28, 2019Assignee: Japan Display Inc.Inventors: Yoshinori Aoki, Keita Sasanuma, Kazune Matsumura
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Publication number: 20190102026Abstract: A display device having a Near Field Communication (NFC) function and a display panel installed with the touch panel function comprising: the common voltage is applied to all the display electrodes (Tx1 through Txn) during a display operation; the voltage for the touch panel is successively applied to the display electrodes during the touch panel operation; a first circuit, which changes between the display operation and the touch panel operation, is formed at a first side of the display area, a second circuit, which changes between the image display operation and the touch panel operation, is formed at a second side of the display area; the first circuit supplies the voltage for the touch panel to a selected display electrode and supplies the common electrode to other electrodes; the second switch circuit does not supply voltage to the selected display electrode and supplies the common voltage to other electrodes.Type: ApplicationFiled: September 28, 2018Publication date: April 4, 2019Applicant: Japan Display Inc.Inventors: Hiroyuki ABE, Kazune MATSUMURA, Naoki MIYANAGA
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Publication number: 20190011757Abstract: In an IPS-mode liquid crystal display device, the area of a terminal portion is decreased. A liquid crystal display device includes a TFT substrate and a counter substrate attached to the TFT substrate with a sealing material, and includes a display region and a terminal portion formed on the TFT substrate. A shielding transparent conductive film is formed on the outer side of the counter substrate. On the terminal portion, an earth pad formed with a transparent conductive film is formed on an organic passivation film. The shielding transparent conductive film is connected to the earth pad through a conductor. Below organic passivation film of the terminal portion, a wire is formed.Type: ApplicationFiled: September 13, 2018Publication date: January 10, 2019Inventors: Hiroyuki Abe, Kentaro Agata, Masaki Murase, Kazune Matsumura
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Patent number: 10101618Abstract: In an IPS-mode liquid crystal display device, the area of a terminal portion is decreased. A liquid crystal display device includes a TFT substrate and a counter substrate attached to the TFT substrate with a sealing material, and includes a display region and a terminal portion formed on the TFT substrate. A shielding transparent conductive film is formed on the outer side of the counter substrate. On the terminal portion, an earth pad formed with a transparent conductive film is formed on an organic passivation film. The shielding transparent conductive film is connected to the earth pad through a conductor. Below organic passivation film of the terminal portion, a wire is formed.Type: GrantFiled: February 8, 2017Date of Patent: October 16, 2018Assignee: Japan Display Inc.Inventors: Hiroyuki Abe, Kentaro Agata, Masaki Murase, Kazune Matsumura
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Publication number: 20180039119Abstract: A second substrate has detection electrodes of a touch panel, each of pixels has a pixel electrode and a counter-electrode, the counter electrode is divided into a plurality of blocks, the counter electrodes of the respective divided blocks are commonly provided for the respective pixels of the plurality of display liner in series, and the counter electrodes also serve ae scanning electrodes of the touch panel, and a counter electrode selector circuit that selects the counter electrodes. The counter electrode selector circuit includes an address decoder circuit that selects the counter electrodes of the respective blocks for a given period, and a selector circuit that applies a touch panel scanning voltage to the counter electrode of the block selected by the address decoder circuit, and applies a counter voltage to the counter electrodes of the blocks not selected by the address decoder circuit.Type: ApplicationFiled: August 31, 2017Publication date: February 8, 2018Inventors: Yoshinori AOKI, Keita Sasanuma, Kazune Matsumura
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Patent number: 9778501Abstract: A second substrate has detection electrodes of a touch panel, each of pixels has a pixel electrode and a counter electrode, the counter electrode is divided into a plurality of blocks, the counter electrodes of the respective divided blocks are commonly provided for the respective pixels of the plurality of display lines in series, and the counter electrodes also serve as scanning electrodes of the touch panel, and a counter electrode selector circuit that selects the counter electrodes. The counter electrode selector circuit includes an address decoder circuit that selects the counter electrodes of the respective blocks for a given period, and a selector circuit that applies a touch panel scanning voltage to the counter electrode of the block selected by the address decoder circuit, and applies a counter voltage to the counter electrodes of the blocks not selected by the address decoder circuit.Type: GrantFiled: June 19, 2015Date of Patent: October 3, 2017Assignee: Japan Display Inc.Inventors: Yoshinori Aoki, Keita Sasanuma, Kazune Matsumura
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Publication number: 20170235182Abstract: In an IPS-mode liquid crystal display device, the area of a terminal portion is decreased. A liquid crystal display device includes a TFT substrate and a counter substrate attached to the TFT substrate with a sealing material, and includes a display region and a terminal portion formed on the TFT substrate. A shielding transparent conductive film is formed on the outer side of the counter substrate. On the terminal portion, an earth pad formed with a transparent conductive film is formed on an organic passivation film. The shielding transparent conductive film is connected to the earth pad through a conductor. Below organic passivation film of the terminal portion, a wire is formed.Type: ApplicationFiled: February 8, 2017Publication date: August 17, 2017Inventors: Hiroyuki ABE, Kentaro AGATA, Masaki MURASE, Kazune MATSUMURA
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Patent number: 9541808Abstract: A liquid crystal display device includes a first substrate on which a thin film transistor is formed. The liquid crystal display device includes a first transistor which has a gate electrode thereof formed on a side more remote from the first substrate than a semiconductor layer and has a drain electrode thereof connected to the drain line, a second transistor which is connected to the first transistor in series, and has a source electrode thereof electrically connected to a pixel electrode, and a light blocking layer which is formed between the semiconductor layer and the first substrate and blocks a backlight incident from a first substrate side. The light blocking layer is formed in an overlapping manner on the first transistor, blocks a backlight incident on a first transistor side, and allows a backlight incident on a second transistor side to pass therethrough.Type: GrantFiled: January 21, 2016Date of Patent: January 10, 2017Assignee: Japan Display Inc.Inventors: Kazune Matsumura, Hideo Sato, Keita Sasanuma
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Publication number: 20160139471Abstract: A liquid crystal display device includes a first substrate on which a thin film transistor is formed. The liquid crystal display device includes a first transistor which has a gate electrode thereof formed on a side more remote from the first substrate than a semiconductor layer and has a drain electrode thereof connected to the drain line, a second transistor which is connected to the first transistor in series, and has a source electrode thereof electrically connected to a pixel electrode, and a light blocking layer which is formed between the semiconductor layer and the first substrate and blocks a backlight incident from a first substrate side. The light blocking layer is formed in an overlapping manner on the first transistor, blocks a backlight incident on a first transistor side, and allows a backlight incident on a second transistor side to pass therethrough.Type: ApplicationFiled: January 21, 2016Publication date: May 19, 2016Inventors: Kazune MATSUMURA, Hideo SATO, Keita SASANUMA
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Patent number: 9274391Abstract: A liquid crystal display device includes a first substrate on which a thin film transistor is formed. The liquid crystal display device includes a first transistor which has a gate electrode thereof formed on a side more remote from the first substrate than a semiconductor layer and has a drain electrode thereof connected to the drain line, a second transistor which is connected to the first transistor in series, and has a source electrode thereof electrically connected to a pixel electrode, and a light blocking layer which is formed between the semiconductor layer and the first substrate and blocks a backlight incident from a first substrate side. The light blocking layer is formed in an overlapping manner on the first transistor, blocks a backlight incident on a first transistor side, and allows a backlight incident on a second transistor side to pass therethrough.Type: GrantFiled: September 11, 2012Date of Patent: March 1, 2016Assignee: JAPAN DISPLAY INC.Inventors: Kazune Matsumura, Hideo Sato, Keita Sasanuma
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Publication number: 20150362777Abstract: A second substrate has detection electrodes of a touch panel, each of pixels has a pixel electrode and a counter electrode, the counter electrode is divided into a plurality of blocks, the counter electrodes of the respective divided blocks are commonly provided for the respective pixels of the plurality of display lines in series, and the counter electrodes also serve as scanning electrodes of the touch panel, and a counter electrode selector circuit that selects the counter electrodes. The counter electrode selector circuit includes an address decoder circuit that selects the counter electrodes of the respective blocks for a given period, and a selector circuit that applies a touch panel scanning voltage to the counter electrode of the block selected by the address decoder circuit, and applies a counter voltage to the counter electrodes of the blocks not selected by the address decoder circuit.Type: ApplicationFiled: June 19, 2015Publication date: December 17, 2015Inventors: Yoshinori AOKI, Keita Sasanuma, Kazune Matsumura
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Patent number: 9104055Abstract: A second substrate has detection electrodes of a touch panel, each of pixels has a pixel electrode and a counter electrode, the counter electrode is divided into a plurality of blocks, the counter electrodes of the respective divided blocks are commonly provided for the respective pixels of the plurality of display lines in series, and the counter electrodes also serve as scanning electrodes of the touch panel, and a counter electrode selector circuit that selects the counter electrodes. The counter electrode selector circuit includes an address decoder circuit that selects the counter electrodes of the respective blocks for a given period, and a selector circuit that applies a touch panel scanning voltage to the counter electrode of the block selected by the address decoder circuit, and applies a counter voltage to the counter electrodes of the blocks not selected by the address decoder circuit.Type: GrantFiled: January 22, 2013Date of Patent: August 11, 2015Assignee: JAPAN DISPLAY INC.Inventors: Yoshinori Aoki, Keita Sasanuma, Kazune Matsumura
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Publication number: 20130082914Abstract: A liquid crystal display device includes a first substrate on which a thin film transistor is formed. The liquid crystal display device includes a first transistor which has a gate electrode thereof formed on a side more remote from the first substrate than a semiconductor layer and has a drain electrode thereof connected to the drain line, a second transistor which is connected to the first transistor in series, and has a source electrode thereof electrically connected to a pixel electrode, and a light blocking layer which is formed between the semiconductor layer and the first substrate and blocks a backlight incident from a first substrate side. The light blocking layer is formed in an overlapping manner on the first transistor, blocks a backlight incident on a first transistor side, and allows a backlight incident on a second transistor side to pass therethrough.Type: ApplicationFiled: September 11, 2012Publication date: April 4, 2013Inventors: Kazune MATSUMURA, Hideo Sato, Keita Sasanuma